Enable perf in obmc-phosphor-debugtools

This enables the userspace 'perf' tool and the corresponding kernel
configuration.

PERF_EVENTS is enabled on ast2500. It was already enabled on ast2400.

TIMER_STATS is enabled. This has low runtime impact when not enabled. It
defaults to off.

Change-Id: Iac1761aec999679b611e9bf9b51d0fe585d7ac5c
Signed-off-by: Joel Stanley <joel@jms.id.au>
diff --git a/meta-openbmc-bsp/meta-aspeed/meta-ast2500/recipes-kernel/linux/linux-obmc/defconfig b/meta-openbmc-bsp/meta-aspeed/meta-ast2500/recipes-kernel/linux/linux-obmc/defconfig
index 10dc731..87dd3ad 100644
--- a/meta-openbmc-bsp/meta-aspeed/meta-ast2500/recipes-kernel/linux/linux-obmc/defconfig
+++ b/meta-openbmc-bsp/meta-aspeed/meta-ast2500/recipes-kernel/linux/linux-obmc/defconfig
@@ -11,10 +11,10 @@
 # CONFIG_RD_BZIP2 is not set
 # CONFIG_RD_LZO is not set
 # CONFIG_RD_LZ4 is not set
-CONFIG_KALLSYMS_ALL=y
 CONFIG_BPF_SYSCALL=y
 # CONFIG_AIO is not set
 CONFIG_EMBEDDED=y
+CONFIG_PERF_EVENTS=y
 # CONFIG_COMPAT_BRK is not set
 CONFIG_SLAB=y
 CONFIG_JUMP_LABEL=y
@@ -148,10 +148,10 @@
 CONFIG_SENSORS_OCC_P9_SBE=y
 CONFIG_PMBUS=y
 CONFIG_SENSORS_ADM1275=y
+CONFIG_SENSORS_IBM_CFFPS=y
 CONFIG_SENSORS_IR35221=y
 CONFIG_SENSORS_LM25066=y
 CONFIG_SENSORS_MAX31785=y
-CONFIG_SENSORS_IBM_CFFPS=y
 CONFIG_SENSORS_UCD9000=y
 CONFIG_SENSORS_UCD9200=y
 CONFIG_SENSORS_TMP421=y
@@ -207,8 +207,8 @@
 CONFIG_LOCKUP_DETECTOR=y
 CONFIG_WQ_WATCHDOG=y
 CONFIG_PANIC_TIMEOUT=-1
-# CONFIG_SCHED_DEBUG is not set
 CONFIG_SCHED_STACK_END_CHECK=y
+CONFIG_TIMER_STATS=y
 CONFIG_FUNCTION_TRACER=y
 # CONFIG_TRACING_EVENTS_GPIO is not set
 CONFIG_DEBUG_USER=y